How to Use This Free QR Code Generator
- Select Your Content Type: Choose between Website URL, Plain Text, Wi-Fi Network Credentials, Pre-filled Email, Phone Number, or SMS.
- Enter Your Destination or Information: Input your web address or network information. The preview updates instantly in your browser as you type.
- Choose error correction and colors: M is the common default. Higher levels add more error-correction data and may require a larger symbol. Keep strong contrast and test the final design at its printed size.
- Download PNG or SVG: PNG is a pixel image. SVG can be scaled without enlarging a fixed pixel grid, but either export still needs a print-size scan test.
Static vs. Dynamic QR Codes: Understanding the Difference
When choosing a QR code generator for business cards, restaurant menus, product packaging, or personal projects, it is essential to understand the difference between static and dynamic architectures:
- Static QR Codes (What FivoTools Generates): The selected payload, such as
https://example.comor Wi-Fi credentials, is encoded directly into the symbol. FivoTools adds no hosted redirect. The printed payload cannot be edited; you must create a new code to change it. The destination can independently become unavailable. - Dynamic QR Codes: These commonly encode a managed short link. Its operator can change the final destination, while scans depend on that redirect continuing to work. Terms, logging and limits vary by provider.
QR Code Error Correction Levels
QR codes use Reed–Solomon error correction. DENSO WAVE describes the levels as approximate restoration rates for total codewords. They do not mean that the same percentage of any damaged picture area can be covered, and they do not guarantee a scan:
| Level | Recovery Capacity | What to consider |
|---|---|---|
| Level L (Low) | Approx. 7% | Lowest error-correction level; can suit clean conditions or payloads that need more capacity. |
| Level M (Medium) | Approx. 15% | Commonly used level; the tool selects this by default. |
| Level Q (Quartile) | Approx. 25% | More error-correction data than M; test the resulting symbol and print size. |
| Level H (High) | Approx. 30% | Highest listed level; more error-correction data may increase the required symbol size. |
Printing & Sizing Best Practices
For better scan reliability, follow these practical rules and test a printed sample on the devices your audience uses:
- Match size to content and distance: Longer content makes more modules and smaller printed squares at the same physical size. Print a sample at the intended dimensions and test it from the expected scanning distance. Use SVG when you need to scale for print.
- Keep the quiet zone: DENSO WAVE specifies a clear margin at least four modules wide on every side for a standard QR Code. FivoTools includes this margin in its PNG and SVG exports. Avoid cropping it when placing the code into design software.
- Color & Contrast: Dark modules on a light, solid background are a conservative choice. Avoid busy backgrounds and check any color changes with the scanners your audience is likely to use.
Privacy by Design
QR generation runs in your browser. The generator does not submit your entered content to FivoTools to make a QR image, and Wi-Fi passwords are not saved by this tool. Your downloaded image contains the data you entered, so handle it carefully if it includes private information. If someone opens a URL from a QR code, their device contacts that destination; its operator may collect visit data under its own practices.
Method, limits and sources
The browser encodes your content as a standard QR symbol with a four-module quiet zone. Entering example.com is normalized tohttps://example.com; the QR payload is that URL, not a FivoTools link. The symbol's module count depends on the encoded content and selected error correction, so there is no universal print size. Wi-Fi SSIDs are limited to 32 UTF-8 bytes; this tool supports WPA/WPA2 Personal, legacy WEP and open networks. Scanner support can vary, so test Wi-Fi codes on the devices people will use. URL mode accepts web addresses only; other types use their corresponding payload formats. Decode and inspect a sample before distributing a printed batch.
Sources: DENSO WAVE on symbol capacity, DENSO WAVE on error correction, DENSO WAVE on quiet zones and printed area, the QR encoding library documentation, and the ZXing Wi-Fi payload convention.